First-principles Study of Field Emissions from Natrium-Encapsulated Boron-Nitride Nanotube in a Perpendicular Geometry

2010 ◽  
Vol 23 (5) ◽  
pp. 553-557
Author(s):  
Qiang Gao ◽  
Shuang-lin Hu ◽  
Bin Li
2008 ◽  
Vol 07 (04) ◽  
pp. 793-803
Author(s):  
NUANXIANG LI ◽  
QUNXIANG LI ◽  
HAIBIN SU ◽  
Q. W. SHI ◽  
JINLONG YANG

First-principles studies on electronic structures, transverse polarizability, and shielding of two coaxial hybrid double-walled nanotubes consisting of carbon nanotube (CNT) and boron nitride nanotube (BNNT), namely CNT@BNNT and BNNT@CNT, are conducted. The interaction between inner and outer tubes is considerably weak. The polarizability of single-walled CNT is larger than that of single-walled BNNT due to the different electronic properties. In BNNT@CNT, the outer CNT with delocalized π-electrons character demonstrates a nearly complete shielding with the order of 90% of the inner BNNT from the transverse external electric field, while the outer BNNT has a relative small shielding of about 40% for the inner CNT in CNT@BNNT system. Moreover, the shielding of the outer tube can be appreciably enhanced by increasing the intertube separation.


2008 ◽  
Vol 372 (34) ◽  
pp. 5609-5613 ◽  
Author(s):  
K.L. Yao ◽  
Y. Min ◽  
Z.L. Liu ◽  
H.G. Cheng ◽  
S.C. Zhu ◽  
...  

2018 ◽  
Vol 5 (5) ◽  
pp. 055041 ◽  
Author(s):  
Shujing Li ◽  
Mei Zhou ◽  
Menglei Li ◽  
Xiaohui Wang ◽  
Fawei Zheng ◽  
...  

2012 ◽  
Vol 112 (5) ◽  
pp. 053518 ◽  
Author(s):  
Quan Huang ◽  
Dongli Yu ◽  
Zhisheng Zhao ◽  
Siwei Fu ◽  
Mei Xiong ◽  
...  

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